EP1874055A3 - Pulldown correction for progressive scan display of audiovisual recordings - Google Patents

Pulldown correction for progressive scan display of audiovisual recordings Download PDF

Info

Publication number
EP1874055A3
EP1874055A3 EP07012579A EP07012579A EP1874055A3 EP 1874055 A3 EP1874055 A3 EP 1874055A3 EP 07012579 A EP07012579 A EP 07012579A EP 07012579 A EP07012579 A EP 07012579A EP 1874055 A3 EP1874055 A3 EP 1874055A3
Authority
EP
European Patent Office
Prior art keywords
fields
pulldown
correction
progressive scan
scan display
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP07012579A
Other languages
German (de)
French (fr)
Other versions
EP1874055A2 (en
EP1874055B1 (en
Inventor
Cecile M. Foret
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Apple Inc
Original Assignee
Apple Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Apple Inc filed Critical Apple Inc
Publication of EP1874055A2 publication Critical patent/EP1874055A2/en
Publication of EP1874055A3 publication Critical patent/EP1874055A3/en
Application granted granted Critical
Publication of EP1874055B1 publication Critical patent/EP1874055B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/93—Regeneration of the television signal or of selected parts thereof
    • H04N5/937—Regeneration of the television signal or of selected parts thereof by assembling picture element blocks in an intermediate store
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/23424—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving splicing one content stream with another content stream, e.g. for inserting or substituting an advertisement
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
    • H04N21/4307—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen
    • H04N21/43072—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen of multiple content streams on the same device
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/44016—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving splicing one content stream with another content stream, e.g. for substituting a video clip
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
    • H04N7/0112—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level one of the standards corresponding to a cinematograph film standard
    • H04N7/0115—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level one of the standards corresponding to a cinematograph film standard with details on the detection of a particular field or frame pattern in the incoming video signal, e.g. 3:2 pull-down pattern

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Business, Economics & Management (AREA)
  • Marketing (AREA)
  • Television Systems (AREA)
  • Television Signal Processing For Recording (AREA)
  • Details Of Television Scanning (AREA)

Abstract

Embodiments of the present invention relate to methods and systems that may detect cadences and duplicate fields in a video sequence, and correct the sequence to retrieve the original progressive content. Methods according to the present invention may compare consecutive fields of the same parity for similarity, and consecutive fields of the opposite parity for field and frame activity. By analyzing patterns in the similarity and activity of the fields, the cadence may be determined. The invention also provides methods that may be used to adjust for changes in the cadence, such as can result from scene changes in the video stream.
EP07012579A 2006-06-27 2007-06-27 Pulldown correction for progressive scan display of audiovisual recordings Not-in-force EP1874055B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/475,049 US8027382B2 (en) 2006-06-27 2006-06-27 Pulldown correction for progressive display of audiovisual recordings

Publications (3)

Publication Number Publication Date
EP1874055A2 EP1874055A2 (en) 2008-01-02
EP1874055A3 true EP1874055A3 (en) 2008-04-30
EP1874055B1 EP1874055B1 (en) 2010-11-17

Family

ID=38473936

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07012579A Not-in-force EP1874055B1 (en) 2006-06-27 2007-06-27 Pulldown correction for progressive scan display of audiovisual recordings

Country Status (4)

Country Link
US (1) US8027382B2 (en)
EP (1) EP1874055B1 (en)
AT (1) ATE488961T1 (en)
DE (1) DE602007010543D1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8134640B2 (en) 2006-12-26 2012-03-13 Broadcom Corporation Video processor architecture and method for frame rate conversion
US9456192B2 (en) * 2007-12-14 2016-09-27 Cable Television Laboratories, Inc. Method of coding and transmission of progressive video using differential signal overlay
US8760574B2 (en) * 2008-04-30 2014-06-24 Broadcom Corporation Image processing methods and systems for frame rate conversion
TWI375473B (en) * 2008-08-22 2012-10-21 Amtran Technology Co Ltd Image signal processing method
US20100254453A1 (en) 2009-04-02 2010-10-07 Qualcomm Incorporated Inverse telecine techniques
EP2293554A1 (en) 2009-07-27 2011-03-09 Trident Microsystems (Far East) Ltd. Frame-rate conversion
US8537901B2 (en) 2010-12-23 2013-09-17 Stmicroelectronics Asia Pacific Pte Ltd. Apparatus and method for exotic cadence detection
US9148620B2 (en) 2011-04-11 2015-09-29 Intel Corporation Detecting video formats
US8937683B2 (en) * 2011-06-30 2015-01-20 Stmicroelectronics Asia Pacific Pte Ltd Apparatus and method for inverse telecine with local video de-interlacing
GB201407665D0 (en) * 2014-05-01 2014-06-18 Imagination Tech Ltd Cadence analysis for a video signal having an interlaced format
US10389970B2 (en) * 2015-01-23 2019-08-20 Lg Electronics Inc. Method and device for transmitting and receiving broadcast signal for restoring pulled-down signal

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4998287A (en) * 1988-10-14 1991-03-05 General Instrument Corporation Determination of sequential positions of video fields derived from film
US4998167A (en) * 1989-11-14 1991-03-05 Jaqua Douglas A High resolution translation of images
US6041142A (en) * 1993-12-02 2000-03-21 General Instrument Corporation Analyzer and methods for detecting and processing video data types in a video data stream
US6157412A (en) * 1998-03-30 2000-12-05 Sharp Laboratories Of America, Inc. System for identifying video fields generated from film sources
US20040105029A1 (en) * 2002-11-06 2004-06-03 Patrick Law Method and system for converting interlaced formatted video to progressive scan video

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5452011A (en) * 1994-03-14 1995-09-19 Thomson Consumer Electronics, Inc. Method and device for film-mode detection and field elimination
EP0847199B1 (en) * 1995-09-29 1999-04-28 Matsushita Electric Industrial Co., Ltd. Method, disc and device for encoding seamless-connection of telecine-converted video data
US7623576B1 (en) * 1999-02-26 2009-11-24 Stmicroelectronics Asia Pacific Pte. Ltd. Method and apparatus for interlaced/non-interlaced frame determination, repeat-field identification and scene-change detection

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4998287A (en) * 1988-10-14 1991-03-05 General Instrument Corporation Determination of sequential positions of video fields derived from film
US4998167A (en) * 1989-11-14 1991-03-05 Jaqua Douglas A High resolution translation of images
US6041142A (en) * 1993-12-02 2000-03-21 General Instrument Corporation Analyzer and methods for detecting and processing video data types in a video data stream
US6157412A (en) * 1998-03-30 2000-12-05 Sharp Laboratories Of America, Inc. System for identifying video fields generated from film sources
US20040105029A1 (en) * 2002-11-06 2004-06-03 Patrick Law Method and system for converting interlaced formatted video to progressive scan video

Also Published As

Publication number Publication date
US8027382B2 (en) 2011-09-27
US20070296870A1 (en) 2007-12-27
EP1874055A2 (en) 2008-01-02
ATE488961T1 (en) 2010-12-15
DE602007010543D1 (en) 2010-12-30
EP1874055B1 (en) 2010-11-17

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